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Submillisecond Monaural Coincidence Detection by Octopus Cells

Journal Contribution - Journal Article

In vitro and in silico studies have suggested that octopus cells in the mammalian posterior ventral cochlear nucleus (PVCN) are monaural coincidence detectors that encode the temporal structure of complex sounds. In vivo studies on these neurons, however, are rare due to several technical difficulties. We used sharp high-impedance electrodes in anesthetized gerbils to study the responses of octopus cells to click trains. We find that, even though octopus cells only fire an onset spike to pure tones, they fire in sustained fashion to trains of transients. They entrain to click trains up to 400 Hz with vector strength almost equal to one and spike jitter at ∼100 microseconds. This temporal precision is unmatched by any other cell type in the auditory system.
Journal: Acta Acustica United with Acustica
ISSN: 1610-1928
Issue: 5
Volume: 104
Pages: 852 - 855
Publication year:2018
BOF-keylabel:yes
IOF-keylabel:yes
BOF-publication weight:0.1
CSS-citation score:1
Authors:International
Authors from:Higher Education
Accessibility:Open